He found the IQ of those who tried to juggle messages and work fell by 10 points -- the equivalent to missing a whole night's sleep and more than double the 4-point fall seen after smoking marijuana.
Sleep deprivation is worse than marijuana?
(And though I mentioned in my blog about trying to get my inbox to zero some time ago, I haven't truly succeeded. I am still a slacker and those emails that I don't know how to respond to end up sitting in my inbox accreting guilt.
I do think my inbox has improved some. I'm usually at about two screen-fulls of mail, and when I hit 3 I remember that I probably should clean out some of the junk.
Oh yeah, and the inbox zero video was fun.